Electric connector with limiting function

Abstract

The utility model relates to the technical field of electric connectors, and discloses an electric connector with a limiting function, which comprises an insulating main body, a terminal assembly inserted into the insulating main body along an insertion direction, and a limiting structure inserted into the insulating main body along an X-axis direction perpendicular to the insertion direction, the limiting structure comprises a main body part formed by extending along the X-axis direction and a limiting part formed on the main body part, and the terminal assembly is provided with a limited part which enables the limiting part to limit the terminal assembly to move along the plugging direction. By arranging the limiting part and arranging the limited part on the terminal assembly, the limiting part can clamp the limited part in the direction perpendicular to the plugging direction after the terminal assembly is installed on the insulating main body, so that the terminal assembly cannot move in the plugging direction to cause loosening and the like; it is ensured that the terminal assembly is firmly limited in the insulating body in the plugging process, so that the stability of the terminal assembly is effectively improved, and the use stability and safety of the electric connector are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to an electric connector with a limiting function. Background Art

[0002] Electrical connectors are widely used in electronics, electrical appliances, and instrumentation. They bridge blocked or disconnected circuits within a circuit, carrying out the task of transmitting current or signals. They can be used in conjunction with connectors to create board-to-wire connections, or independently for board-to-board connections. Electrical connectors are widely used in various fields, such as automobiles, electric vehicles, and other motor vehicles, to connect various electrical components.

[0003] An electrical connector is usually assembled from a shell structure and a terminal structure. The terminal structure is usually inserted into the shell structure along an insertion direction, and the terminal is clamped into the shell structure by providing a protruding elastic structure on the outer surface of the terminal structure. When it is necessary to connect an electrical signal, this is achieved by plugging a complementary electrical connector into the electrical connector and plugging the terminal structure into the complementary terminal structure in the complementary electrical connector. However, the terminal structure and the complementary terminal structure are usually consistent with the installation direction of the terminal structure when plugging and unplugging, and the elastic structure on the outer surface of the terminal structure is affected by factors such as service life and temperature rise caused during the transmission of electrical signals. Its clamping effect will gradually decrease or even fail, resulting in the possibility of the terminal structure falling off or loosening during use of the electrical connector, affecting the safety of the electrical connector. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an electrical connector with a limiting function to solve the problems of the terminal structure falling off or loosening during the plugging and unplugging process.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an electrical connector with a limiting function, including an insulating body, a terminal assembly inserted into the insulating body along the plug-in direction, and a limiting structure inserted into the insulating body along the transverse direction perpendicular to the plug-in direction; the limiting structure includes a main body part extending along the transverse direction and a limiting part formed on the main body part, and the terminal assembly is provided with a limiting part that enables the limiting part to limit the movement of the terminal assembly along the plug-in direction. Through the cooperation between the limiting part and the limiting part, the limiting part firmly locks the limiting part in the plug-in direction, so that the terminal assembly will not loosen when plugging and unplugging with the complementary terminal, thereby improving the overall stability of the electrical connector.

[0006] Furthermore, the limiting portion includes at least two extension arms integrally connected to the main body, each of the extension arms is extended along the X-axis direction and each of the extension arms is arranged in sequence along the Y-axis direction, and a locking groove adapted to the limited portion and for the limited portion to pass through is formed between any two adjacent extension arms, and the locking groove is converged in the middle and is arranged through along the X-axis direction toward the side away from the main body; an assembly cavity for the terminal assembly to be inserted therein along the plug-in direction is formed on the insulating body, and an installation groove connecting the assembly cavity and adapted to the limiting structure is opened on the insulating body along the X-axis direction, and each of the extension arms is inserted into the installation groove and cooperates with the limited portion of the terminal assembly, so that the limiting structure locks the limited portion of the terminal assembly through the installation groove, thereby preventing the terminal assembly from moving in the plug-in direction.

[0007] Furthermore, each of the extension arms is provided with a sliding protrusion on the side edges along the plug-in direction, and the sliding protrusion is extended along the X-axis direction. A sliding groove adapted to the sliding protrusion is recessed on the assembly cavity, and the sliding groove passes through the insulating body along the X-axis direction and is connected to the mounting groove, so that when the limiting structure is installed in the mounting groove, the sliding protrusion slides along the X-axis and passes through the sliding groove, thereby preventing the limiting structure from shifting and reducing the difficulty of installing the limiting structure.

[0008] Furthermore, an anti-rotation protrusion is provided on both ends of each extension arm, and the anti-rotation protrusion is located on the side of the extension arm facing away from the sliding protrusion, thereby achieving precise installation of the limiting structure and improving the connection tightness between the limiting structure and the insulating body, thereby improving stability.

[0009] Furthermore, the two extension arms on both sides of the outermost edge of each extension arm along the Y-axis direction are defined as edge extension arms, and the two edge extension arms are provided with convex extensions on both sides along the plug-in direction. The convex portions protrude outward from the sliding convex portion and the anti-rotation convex portion in the plug-in direction, and a tooth portion is provided on the side of each convex portion away from the main body portion, and an avoidance hole is opened along the Y-axis direction at the position corresponding to the tooth portion on each convex portion, so that the tooth portion cooperates with the avoidance hole to press against the corresponding installation groove wall, thereby improving the tightness of the limiting structure.

[0010] Furthermore, a limiting groove is provided on the insulating body, which is connected to the assembly cavity and passes through the insulating shell along the X-axis direction. The limiting groove is connected to the installation slot and is adapted to the edge extension arm. A tooth groove portion is provided at the position of the limiting groove corresponding to the tooth portion for limiting the movement of the tooth portion after the limiting structure is installed in the installation slot. The tooth groove portion is used to prevent the tooth portion from escaping from the assembly cavity.

[0011] Furthermore, the mounting groove includes a first groove section connecting the assembly cavity, the sliding groove and the limiting groove, and a plurality of grooves opened on the side of the insulating body away from the first groove section along the X-axis direction, facing each extension arm. Each of the grooves is facing the sliding groove or the limiting groove where the extension arm is located along the X-axis. The main body is arranged in the first groove section, and the end of each extension arm away from the main body is respectively arranged in each groove. The first groove section ensures that the limiting structure can penetrate into the assembly cavity, and each groove provides support for the end of the extension arm away from the main body, thereby enhancing the support and stability between the extension arm and the insulating body.

[0012] Furthermore, a limiting baffle is protruded and extended along the plug-in direction on one side of the main body away from the extension arm, and the mounting groove also includes a second groove section that is connected to the first groove section and adapted to the limiting baffle. The limiting baffle is passed through and abuts against the second groove section, which increases the contact area with the insulating body and improves the connection stability while facilitating the limitation of the depth of the limiting structure penetrating into the assembly cavity to prevent the extension arm from passing out of the groove.

[0013] Furthermore, the terminal assembly includes a first terminal and a second terminal, and the locking slot has a first limiting area for limiting the first terminal and a second limiting area for limiting the second terminal along the X-axis direction, so as to adapt to and limit different terminals.

[0014] The electrical connector with a limiting function of the present invention has at least the following beneficial effects: by providing a limiting portion and a limiting portion on the terminal assembly, after the terminal assembly is installed on the insulating body, the limiting portion can clamp the limiting portion in a direction perpendicular to the plug-in direction, so that the terminal assembly can no longer move in the plug-in direction and become loose, etc., ensuring that the terminal assembly is firmly restricted in the insulating body during the plug-in and unplugging process, thereby effectively improving the stability of the terminal assembly and improving the stability and safety of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 This is a schematic structural diagram of the electrical connector of the present utility model;

[0017] Figure 2 It is a partial side view of the electrical connector of the present invention;

[0018] Figure 3 It is a cross-sectional view of the electrical connector of the present invention along the AA direction;

[0019] Figure 4It is a cross-sectional view of the electrical connector of the present invention along the BB direction;

[0020] Figure 5 This is a partial exploded view of the electrical connector of the present invention;

[0021] Figure 6 This is a schematic diagram of the cooperation between the limiting structure and the terminal assembly of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the limiting structure of the utility model.

[0023] The meanings of the reference numerals in the accompanying drawings are:

[0024] Insulating body 1; first insertion hole section 111; second insertion hole section 112; main housing 12; surrounding side plate 121; clamping block 122; front cover 13; support plate section 131; raised plate section 132; platform section 133; surrounding secondary side plate 134; mounting slot 14; first slot section 141; notch 142; mounting section 143; second slot section 144; slide slot 145; limiting slot 146; tooth groove 1461; terminal assembly 2; first terminal 2a; second terminal 2b; first connection end 21; holding Wire arm-211; restricted portion-22; second connection end-23; plug-in port-24; first elastic piece-25; second elastic piece-26; convex bump-27; limiting structure-3; main body-31; limiting baffle-311; limiting portion-32; extension arm-321; sliding protrusion-3211; anti-rotation protrusion-3212; edge extension arm-3213; enclosure portion-3214; avoidance hole-3215; tooth portion-3216; locking slot-322; gathering portion-3221; first limiting area-3222; second limiting area-3223. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figures 1 to 7 As shown, the electrical connector with a limiting function of the present invention includes an insulating body 1, a terminal assembly 2 inserted into the insulating body 1 along a plugging direction, and a limiting structure 3 inserted into the insulating body 1 along an X-axis direction perpendicular to the plugging direction. The insulating body 1 provides protection for the terminal assembly 2, and the limiting structure 3 is used to limit the terminal assembly 2 so that the terminal assembly 2 cannot move in the plugging direction, thereby preventing the terminal assembly 2 from moving and loosening during the plugging process, ensuring the stability of the terminal assembly 2, ensuring the normal use of the terminal assembly 2, reducing the number of maintenance times, and reducing costs.

[0027] In this embodiment, the insulating body 1 is made of an insulating material, and an assembly cavity is formed on the insulating body 1 for the terminal assembly 2 to be inserted therein along the plug-in direction, and the terminal assembly 2 is installed in the insulating body 1 through the assembly cavity. A mounting groove 14 is provided on the insulating body 1 along the X-axis direction, which is connected to the assembly cavity and adapted to the shape of the limiting structure 3. The limiting structure 3 is installed on the insulating body 1 through the mounting groove 14 and limits the terminal assembly 2 in the assembly cavity. Specifically, the insulating body 1 includes a main shell 12 and a front cover 13, and the front cover 13 is detachably connected to the front side of the main shell 12. A plurality of first plug-in hole sections 111 are provided on the front side of the main shell 12 along the plug-in direction, and the first plug-in hole sections 111 are distributed in a rectangular array. A plurality of terminal assemblies 2 are provided corresponding to the first plug-in hole sections 111, and one end of the terminal assembly 2 is clamped in the first plug-in hole section 111. A plurality of second insertion hole sections 112 are formed through the front cover 13 along the insertion direction. The second insertion hole sections 112 are arranged in a one-to-one correspondence with the number and position of the first insertion hole sections 111. After the front cover 13 is attached to the front side of the main housing 12, the first insertion hole sections 111 and the second insertion hole sections 112 align with each other to form an assembly cavity. The other end of each terminal assembly 2 is adapted to be secured within the second insertion hole section 112. After the front cover 13 is attached to the front side of the main housing 12, a mounting slot 14 is formed between the front side of the main housing 12 and the front cover 13 to facilitate installation of the retaining structure 3. To facilitate connection between the front cover 13 and the main housing 12 without interfering with installation of the retaining structure 3, and to facilitate removal of the retaining structure 3, enclosing side panels 121 are formed on both sides of the front side of the main housing 12 along the X-axis, extending in the insertion direction. The mounting slot 14 is located between the two enclosing side panels 121. The front cover 13 includes a support plate section 131 whose length and width are consistent with the length (length along the X-axis) and width (length along the Y-axis) of the front side of the main shell 12, and a protruding plate section 132 protruding from the support plate section 131 toward the side of the main shell 12. The second insertion hole section 112 is formed on the protruding plate section 132 and passes through the support plate section 131 along the insertion direction. A step 133 protruding along the X-axis direction is formed on both sides of the support plate section 131 corresponding to the two surrounding side panels 121 relative to the protruding plate section 132. During installation, the protruding plate section 132 is passed through the two surrounding side panels 121 until the two steps 133 abut against the two surrounding side panels 121. A locking block 122 is protruded from the front side of the two surrounding side panels 121, and a locking slot is opened on the two stages 133 along the insertion direction corresponding to each locking block 122. When the two stages 133 are against the surrounding side panels 121, each locking block 122 is respectively inserted into each locking slot to achieve positioning.In order to prevent the limiting structure 3 from being exposed between the two surrounding side panels 121, a surrounding secondary side panel 134 is protruded along the plugging direction toward one side of the main shell 12 on both sides of the support plate segment 131 along the Y-axis direction, corresponding to the part between the two surrounding side panels 121. After the front cover 13 is connected to the main shell 12, the surrounding secondary side panel 134 is located on both sides of the Y-axis direction between the two surrounding side panels 121, so that the surrounding secondary side panel 134, the surrounding side panel 121, the protruding plate segment 132 and the front side of the main shell 12 jointly form a mounting groove 14, and the mounting groove 14 covers the middle part of the assembly cavity and intersects and connects with the assembly cavity.

[0028] In this embodiment, the terminal assembly 2 includes a first terminal 2a and a second terminal 2b, which are respectively used to connect to linear connectors of different specifications. The first terminal 2a and the second terminal 2b each include a first connection end 21, a restricted portion 22, and a second connection end 23, which are integrally formed in the plug-in direction. The first connection end 21 includes a base and wire-holding arms 211 extending obliquely from both sides of the base to form a V-shape. When in use, the linear connector is clamped between the wire-holding arms 211 on both sides to be clamped, while the other end of the linear connector passes through the insulating body 1 from the side of the first insertion hole section 111 away from the second insertion hole section 112. At the same time, when the wire-holding arms 211 are inserted into the first insertion hole section 111, they press against the inner wall of the first insertion hole section 111 to limit the first connection end 21. The restricted portion 22 extends from the base along the plug-in direction. The two sides of the restricted portion 22 are curved and present a structure with wide ends and a narrow middle. The second connecting end 23 is a circular tubular structure with an internal insertion opening 24 extending along the insertion direction. During installation, the second connecting end 23 is inserted into the second insertion hole section 112. To ensure the connection between the second connecting end 23 and the second insertion hole section 112, a first elastic piece 25 is segmented on the second connecting end 23 and tilted outward toward the insertion opening 24. One side of the first elastic piece 25 is integrally connected to the second connecting end 23, while the other end of the first elastic piece 25 is formed into a free end due to the segmentation. The free end is tilted outward toward the restricted portion 22, so that the first elastic piece 25 presses against the inner wall of the second insertion hole section 112 when the second connecting end 23 is inserted into the second insertion hole section 112. To ensure a tight fit with the second connection end 23 when the complementary terminal is inserted into the insertion port 24, a second elastic piece 26 is formed on the second connection end 23, tilted toward the inside of the insertion port 24. One side of the second elastic piece 26 is integrally connected to the second connection end 23, while the other end of the second elastic piece 26 extends away from the restricted portion 22 and tilts inward. When the complementary terminal is inserted into the insertion port 24, the second elastic piece 26 presses against the complementary terminal. Several protrusions 27 are also stamped into the outer wall of the second connection end 23 to gradually reduce the second insertion hole section 112, thereby increasing support points and improving the connection stability between the second connection end 23 and the second insertion hole section 112.

[0029] In this embodiment, the limiting structure 3 includes a main body 31 extending in the transverse direction and a limiting portion 32 formed on the main body 31. The main body 31 ensures the connection of the limiting portion 32, and the limiting portion 32 is used to cooperate with the limiting portion 22 to limit the movement of the terminal assembly 2 in the plugging direction. In the content defined in this embodiment, the main body 31 and the limiting portion 32 are integrally formed. The mounting groove 14 passes through the two surrounding side plates 121 along the X-axis direction to form a first groove section 141 and a groove opening 142, respectively. The portion of the mounting groove 14 located between the groove opening 142 and the first groove section 141 is defined as the mounting section 143. The first groove section 141 covers the mounting section 143 of the mounting groove 14 in the X-axis direction, and the main body 31 is mounted on the first groove section 141. To prevent the main body 31 from passing into the mounting section 143 and affecting the position limiting function of the terminal assembly 2 by the limiting portion 32, a stopper 311 is provided on the side of the main body 31 away from the limiting portion 32, extending in the insertion direction. After the main body 31 passes through the first slot section 141, the stopper 311 abuts against the surrounding side panel 121, preventing the main body 31 from moving further into the mounting section 143. To ensure that the stopper 311 affects the connection between the insulating body 1 and the complementary connector, the mounting slot 14 further includes a second slot section 144 connected to the first slot section 141 and located on the side of the first slot section 141 away from the mounting section 143. The shape of the second slot section 144 matches that of the stopper 311 and the main body 31. After the main body 31 is installed in the first slot section 141, the stopper 311 is completely passed through and abuts against the second slot section 144.

[0030] In the content defined in this embodiment, the limiting portion 32 includes at least two extension arms 321 integrally connected to the main body portion 31, each extension arm 321 is extended from the main body portion 31 along the X-axis direction, and each extension arm 321 is arranged in parallel and at equal intervals along the Y-axis direction, and any two adjacent extension arms 321 are spaced apart to form a locking groove 322 that is adapted to the limited portion 22 and for the limited portion 22 to pass through, so that the locking groove 322 is in a middle-folded shape, and in order to facilitate the limited portion 22 to enter the locking groove 322, the locking groove 322 is arranged along the X-axis direction toward the side away from the main body portion 31, so that when the limiting structure 3 is installed, each extension arm Each of the extension arms 321 is inserted into the installation slot 14, and the restricted portion 22 on the side of the terminal assembly 2 is aligned with the locking slot 322 in the X-axis direction, so that when each extension arm 321 moves toward the installation section 143, the two adjacent extension arms 321 pass through both sides of the restricted portion 22 of the terminal assembly 2 in each row or column. After installation is completed, the retracted portion 3221 of the locking slot 322 corresponds to the retracted portion 3221 of the restricted portion 22, and the wide portions of the locking slot 322 on both sides of the plug-in direction correspond to the wide portion of the restricted portion 22, so that the locking slot 322 and the wide portion of the restricted portion 22 restrict each other, thereby achieving the purpose of restricting the movement of the terminal assembly 2 in the plug-in direction. The locking slot 322 has a first limiting area 3222 for limiting the first terminal 2a and a second limiting area 3223 for limiting the second terminal 2b along the X-axis direction, respectively, to adapt to the first terminal 2a and the second terminal 2b. In order to prevent the extension arm 321 from tilting when inserting into the first groove section 141 and the mounting section 143, thereby increasing the difficulty and time of installation, a sliding protrusion 3211 is convexly provided on one side or both sides of each extension arm 321 along the plug-in direction, and the sliding protrusion 3211 is extended along the X-axis direction. A sliding groove 145 adapted to the sliding protrusion 3211 is concavely provided on the assembly cavity, that is, the front side surface of the main shell 12 and / or the side surface of the convex plate section 132 of the front cover 13 facing the main shell 12. The sliding groove 145 passes through the two surrounding side plates 121 of the insulating body 1 along the X-axis direction and is connected to the mounting section 143, the first groove section 141, the second groove section 144 and the notch 142 of the mounting groove 14. When the limiting structure 3 is installed in the mounting groove 14, each sliding protrusion 3211 is aligned with the corresponding slide groove 145 and then moved toward the mounting groove along the X-axis. The sliding protrusion 3211 slides along the X-axis through the slide groove 145, allowing the extension arm 321 to move along the length of the slide groove 145, preventing the extension arm 321 from tilting or deviating. To increase the stability between the extension arm 321 and the insulating body 1, an anti-rotation protrusion 3212 is provided at both ends of each extension arm 321. The anti-rotation protrusion 3212 is located on the side of the extension arm 321 facing away from the sliding protrusion 3211, so that the anti-rotation protrusion 3212 and the sliding protrusion 3211 are respectively provided on either side of the extension arm 321.If each extension arm 321 is provided with sliding protrusions 3211 on both sides, the sliding protrusion 3211 on one side is regarded as the anti-rotation protrusion 3212. A sliding groove 145 is also provided at a position corresponding to the anti-rotation protrusion 3212 on the mounting slot 14.

[0031] In this embodiment, the arrangement of the terminal assemblies 2 in the Y-axis direction is regarded as a column, and the number of extension arms 321 is equal to the number of columns of the terminal assemblies 2 plus one, so that the number of locking slots 322 is the same as the number of columns of the terminal assemblies 2. The two extension arms 321 on both sides of the outermost edge of each extension arm 321 along the Y-axis direction are defined as edge extension arms 3213. The two edge extension arms 3213 are both convexly extended on both sides along the plug-in direction to form a blocking portion 3214. The sliding protrusion 3211 of the edge extension arm 3213 is covered by the blocking portion 3214. The blocking portion 3214 protrudes outward from the sliding protrusion 3211 and the anti-rotation protrusion 3212 in the plug-in direction. The sliding grooves 145 corresponding to the two edge extension arms 3213 continue to extend from the side away from the two sliding grooves 145 to form a limiting groove 146 adapted to the blocking portion 3214. The limiting groove 146 is also connected to the assembly cavity and the installation groove 14 and passes through the insulating shell along the X-axis direction, so that each blocking portion 3214 can still penetrate into the installation groove 14. Preferably, the number of slots 142 in the X-axis direction corresponds to the number of extension arms 321, and there are multiple slots 142. Each slot 142 is connected to the mounting section 143 and the corresponding slide groove 145, and the two slots 142 corresponding to the edge extension arms 3213 are also connected to the limiting groove 146. Each slot 142 is formed on the surrounding side plate 121 without the first slot section 141. Therefore, each slot 142 is directly opposite the extension arm 321 and the slide groove 145 or the limiting groove 146 along the X-axis. The end of each extension arm 321 away from the main body 31 is respectively passed through each slot 142, so that after the limiting structure 3 is installed on the insulating body 1, the surrounding side plate 121 provides support for both sides of the extension arm 321, thereby improving stability. Preferably, each enclosure portion 3214 is provided with a tooth portion 3216 on a side away from the main body portion 31, and the tooth portion 3216 is in the shape of a triangular tooth or a trapezoidal tooth. A tooth groove portion 1461 is provided at a position in the limiting groove 146 corresponding to the tooth portion 3216 for limiting the movement of the tooth portion 3216 after the limiting structure 3 is installed in the installation groove 14. The tooth groove portion 1461 is adapted to the tooth portion 3216 and is also in the shape of a triangular tooth or a trapezoidal tooth. An avoidance hole 3215 is opened along the Y-axis direction at the position corresponding to the tooth portion 3216 on each enclosure portion 3214. The avoidance hole 3215 makes the portion of the enclosure portion 3214 with the tooth portion 3216 thinner, and provides space for the tooth portion 3216 to deform when it is subjected to the tooth groove portion 1461. Therefore, when the enclosure portion 3214 of the edge extension arm 3213 penetrates the limiting groove 146 and passes through the tooth groove portion 1461 and is squeezed, it can deform inward, so that the squeezed tooth portion 3216 of the edge extension arm 3213 is locked in the narrowed portion until it can pass through the tooth groove portion 1461. When the installation is completed, when no external force is applied to the limiting structure 3, the tooth groove portion 1461 blocks the tooth portion 3216 to prevent the extension arm 321 from falling off.When the limiting structure 3 is installed, the tooth portion 3216 can be aligned with the tooth groove portion 1461, or can be located on the side of the tooth groove portion 1461 away from the first slot section 141. Each limiting slot 146 can be provided with two tooth groove portions 1461, one of which is close to the notch 142. When installed, the tooth portion 3216 is located between this tooth groove portion 1461 and the notch 142, while the other tooth groove portion 1461 is located close to the first slot section 141. Therefore, when the limiting structure 3 needs to be removed, the tooth groove portion 1461 close to the first slot section 141 can prevent the limiting structure 3 from directly separating from the installation slot 14, and the end of the extension arm 321 away from the main body 31 can be located in the installation slot 14. When the limiting structure 3 needs to be installed again, it can be directly pushed into the main body 31 without further alignment, thereby reducing the installation difficulty.

[0032] It should be noted that in this embodiment, both the X-axis direction and the Y-axis direction are lateral directions.

[0033] One embodiment of the electrical connector with a limiting function of the present invention works as follows: after the second connecting end 23 of the terminal assembly 2 is inserted into the second insertion hole section 112, the front cover 13 is aligned with the main shell 12 and then installed on the main shell 12 until the first connecting end 21 of the terminal assembly 2 is inserted into the first insertion hole section 111, and then the extension arms 321 of the limiting structure 3 are aligned with the slide groove 145, and pass through the second groove section 144, the first groove section 141 and the installation section 143 at one time along the X-axis direction and then penetrate into the slot 142. During this process, the tooth portion 3216 passes through the tooth groove portion 1461, and the restricted portion 22 of the terminal assembly 2 enters the locking slot 322 until the installation is completed. The limiting structure 3 limits the terminal assembly 2 in the plug-in direction.

Claims

1. An electrical connector with a limit function, characterized in that: It includes an insulating body, a terminal assembly inserted into the insulating body along the plugging direction, and a limiting structure inserted into the insulating body along the transverse direction perpendicular to the plugging direction; the limiting structure includes a main body part extending along the transverse direction and a limiting part formed on the main body part, and the terminal assembly has a limiting part that allows the limiting part to limit the movement of the terminal assembly along the plugging direction.

2. The electrical connector with a limiting function according to claim 1, wherein: The limiting portion includes at least two extension arms integrally connected to the main body portion, each of the extension arms extends along the X-axis direction and is arranged sequentially along the Y-axis direction, and a locking groove is formed between any two adjacent extension arms to adapt to the limiting portion and for the limiting portion to pass through. The locking groove is converged in the middle and is arranged through along the X-axis direction toward the side away from the main body portion.

3. The electrical connector with a limiting function according to claim 2, wherein: An assembly cavity is formed on the insulating body for the terminal assembly to be inserted into it along the plugging direction. An installation groove is opened on the insulating body along the X-axis direction to connect with the assembly cavity and adapt to the limiting structure. Each of the extension arms is inserted into the installation groove and cooperates with the restricted part of the terminal assembly.

4. The electrical connector with a limiting function according to claim 3, wherein: A sliding protrusion is convexly provided on the side edges of each extension arm along the plug-in direction, and the sliding protrusion extends along the X-axis direction. A sliding groove adapted to the sliding protrusion is concavely provided on the assembly cavity, and the sliding groove passes through the insulating body along the X-axis direction and is connected to the mounting groove, so that the sliding protrusion slides along the X-axis and passes through the sliding groove when the limiting structure is installed in the mounting groove.

5. The electrical connector with a limiting function according to claim 4, wherein: An anti-rotation convex portion is provided on both ends of each extension arm, and the anti-rotation convex portion is located on a side of the extension arm facing away from the sliding convex portion.

6. The electrical connector with a limiting function according to any one of claims 2 to 5, wherein: The two extension arms arranged on both sides of the outermost edge along the Y-axis direction of each extension arm are defined as edge extension arms, and the two edge extension arms are both provided with protruding extensions on both sides along the plug-in direction to form a blocking portion, and the blocking portion protrudes outward from the sliding protrusion and the anti-rotation protrusion in the plug-in direction, and a tooth portion is protruded on the side of each blocking portion away from the main body part, and an avoidance hole is opened along the Y-axis direction at the position corresponding to the tooth portion on each blocking portion.

7. The electrical connector with a limiting function according to claim 6, wherein: A limiting groove is provided on the insulating body, which is connected to the assembly cavity and passes through the insulating shell along the X-axis direction. The limiting groove is connected to the installation groove and is adapted to the edge extension arm. A tooth groove portion is provided at the position of the limiting groove corresponding to the tooth portion, which is used to limit the movement of the tooth portion after the limiting structure is installed in the installation groove.

8. The electrical connector with a limiting function according to claim 7, wherein: The mounting groove includes a first groove section connecting the assembly cavity, the sliding groove and the limiting groove, and a plurality of grooves opened on the side of the insulating body away from the first groove section along the X-axis direction, facing each extension arm. Each of the grooves is facing the sliding groove or the limiting groove where the extension arm is located along the X-axis. The main body is arranged in the first groove section, and one end of each extension arm away from the main body is respectively arranged in each groove.

9. The electrical connector with a limiting function according to claim 8, wherein: A limiting baffle is protruded and extended along the plug-in direction on one side of the main body away from the extension arm. The installation groove also includes a second groove section that is connected to the first groove section and adapted to the limiting baffle. The limiting baffle passes through and abuts against the second groove section.

10. The electrical connector with a limiting function according to claim 2, wherein: The terminal assembly includes a first terminal and a second terminal, and the locking slot has a first limiting area for limiting the first terminal and a second limiting area for limiting the second terminal along the X-axis direction.

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